Home / 778,418,259.89-1,074,216,497.54-439,398,110.48

Finding the Fourth Proportional to 778,418,259.89, 1,074,216,497.54 and 439,398,110.48

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Solution

The fourth proportional to 778,418,259.89, 1,074,216,497.54 and 439,398,110.48 is: 606,368,996.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,418,259.89 : 1,074,216,497.54 = 439,398,110.48 : x
  2. Step 2: Convert to fraction form
    778,418,259.89/1,074,216,497.54 = 439,398,110.48/x
  3. Step 3: Cross multiply
    778,418,259.89x = 1,074,216,497.54 × 439,398,110.48
  4. Step 4: Simplify right side
    778,418,259.89x = 472,008,699,257,951,552
  5. Step 5: Solve for x
    x = 472,008,699,257,951,552/778,418,259.89
  6. Step 6: Final answer
    x = 606,368,996.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.